v3.26.1
Note 2 - Basis of Presentation and Summary of Significant Accounting Policies - Major Customers (Details) - Customer Concentration Risk [Member]
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Customer A [Member] | Revenue Benchmark [Member]          
Concentration risk 51.00% 72.00% 45.00% 72.00%  
Customer A [Member] | Accounts Receivable [Member]          
Concentration risk     68.00%   40.00%
Customer B [Member] | Revenue Benchmark [Member]          
Concentration risk 20.00%   22.00%    
Customer B [Member] | Accounts Receivable [Member]          
Concentration risk         43.00%
Customer C [Member] | Revenue Benchmark [Member]          
Concentration risk 11.00%   11.00%    
Customer D [Member] | Revenue Benchmark [Member]          
Concentration risk     13.00%